Techniques for enabling and performing HARQ transmissions in a D2D communication between wireless devices in a wireless telecommunications network

摘要

A method performed by a network node for enabling Hybrid Automatic Repeat reQuest (HARQ) transmissions in a device-to-device (D2D) communication between a first wireless device and a second wireless device in a wireless telecommunications network is provided. The first and the second wireless device are served by the network node, which transmits information to at least the first and second wireless device indicating transmission resources to be used when transmitting a HARQ acknowledgement (A/N) transmission for a received data transmission in the D2D communication. The network node determines a Time-Division Duplexing (TDD) configuration for data transmissions in the D2D communication between the first and the second wireless device, and transmits the determined TDD configuration to the first and second wireless device.

主权项

1. A method performed by a network node for enabling Hybrid Automatic Repeat request (HARQ) transmissions in a device-to-device (D2D) communication between a first wireless device and a second wireless device in a wireless telecommunications network, wherein the first wireless device and the second wireless device are served by the network node in the wireless telecommunications network, the method comprising:
transmitting information to at least the first wireless device and the second wireless device indicating transmission resources to be used by at least the first wireless device and the second wireless device when transmitting a HARQ acknowledgement (A/N) transmission for a received data transmission in the D2D communication, wherein the information is associated with one or more Time-Division Duplexing (TDD) configurations; determining a TDD configuration of the one or more TDD configurations to be used for data transmissions in the D2D communication between the first wireless device and the second wireless device; transmitting the determined TDD configuration to the first wireless device and the second wireless device; and transmitting an adjustment information for the HARQ A/N transmission to the first wireless device and to the second wireless device, wherein the adjustment information comprises delay adjustment information for the HARQ timing based on the determined TDD configuration, and wherein the delay adjustment information is further based on a change of D2D compatible subframes for data transmissions in the D2D communication between the first wireless device and the second wireless device.